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Finding the Third Proportional to 81,337,611.38 and 123,912,308.25

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Solution

The third proportional to 81,337,611.38 and 123,912,308.25 is: 188,771,957.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,337,611.38 : 123,912,308.25 = 123,912,308.25 : x
  2. Step 2: Convert to fraction form
    81,337,611.38/123,912,308.25 = 123,912,308.25/x
  3. Step 3: Cross multiply
    81,337,611.38x = 123,912,308.25 × 123,912,308.25
  4. Step 4: Simplify right side
    81,337,611.38x = 15,354,260,135,843,018
  5. Step 5: Solve for x
    x = 15,354,260,135,843,018/81,337,611.38
  6. Step 6: Final answer
    x = 188,771,957.72

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.